Below is a list of Fort Peck MT zip codes. For your research we have also included Fort Peck Area Code, Time Zone, UTC and the local Valley County FIPS Code. Each Fort Peck Montana zip code has a center Longitude / Latitude point (the Fort Peck center is -106.452003479 / 48.004699707031). For your convenience we have also indicated if that zip code in Fort Peck observes Daylight Savings time.